Integration of BIM and GIS: Geometry from IFC to shapefile using open-source technology

Zhu, Junxiang; Wang, Xiangyu; Wang, Peng; Wu, Zhiyou; Kim, Mi Jeong

doi:10.1016/j.autcon.2019.02.014

Cited by 162 publications

(106 citation statements)

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“…In the bridge model, four types of profile are being used, i.e., arbitrary profile, circle profile, I-shape profile and rectangle profile. Examples of arbitrary profile, rectangle profile and circle profile are presented in Figure 2 (Zhu et al 2019b).…”

Section: Initial Ring Acquirementmentioning

confidence: 99%

“…These coordinate systems are, however, not independent. They together form a local coordinate system chain from the element-level LCS to the site-level LCS (Zhu et al 2019b). In contrast, shapefile usually uses geographic coordinate system (GCS), such as WGS1984, and each element is defined in the same coordinate system.…”

Section: Brep Generationmentioning

confidence: 99%

“…In the AEC/FM domain, Industry Foundation Classes (IFC) is the most commonly used data schema for building information exchange among different vendors (Amirebrahimi et al 2016a), while shapefile is widely used in the geospatial industry Xu et al 2016;Tashakkori, Rajabifard, and Kalantari 2015). Therefore, it is reasonable to believe that realizing the transformation of IFC into shapefile would greatly benefit GIS in 3D modelling and other studies in GIS based on 3D building models, such as smart city and green building (Zhu et al 2019b).…”

Section: Introductionmentioning

confidence: 99%

“…On the GIS side, primarily, two data formats or standards are being used, i.e., City Geography Markup Language (CityGML) (Deng, Cheng, and Anumba 2016b) and shapefile (Isikdag, Zlatanova, and Underwood 2013;Zhu et al 2019a). Compared with CityGML, shapefile is more flexible in receiving BIM information.…”

Section: Introductionmentioning

confidence: 99%

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BIM/GIS integration for web GIS-based bridge management

et al. 2020

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Integration of Building Information Modelling (BIM) and Geographic Information System (GIS) can benefit both the Architecture, Engineering and Construction/Facility Management (AEC/FM) domain, and the geospatial industry. For GIS, BIM is a promising source of three-dimensional (3D) building information that can be used in the study of smart city, green building, big data, etc. The underlying data transformation from Industry Foundation Classes (IFC) to shapefile enables GIS to use the rich building information. However, this transformation is difficult due to the different modelling methods used by IFC and shapefile. IFC generally represents 3D objects using boundary representation (Brep), swept solid, constructive solid geometry (CSG), clipping and mapped representation, while shapefile only uses Brep. In addition, the use of different coordinate systems also contributes to the geometry transformation issue. Among all the solid modelling methods used by IFC, Brep and swept solid are the most often used two methods. Compared with Brep, the transformation of swept solid is more challenging as each type of profile for swept solid defined in IFC has to be properly interpreted and converted. This paper develops algorithms to interpret the commonly used profiles of swept solid for the transformation of IFC into shapefile. A bridge model is used to validate the proposed method, and a Web GIS-based bridge management system is developed to demonstrate a possible usage of the transformed shapefile model.

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Section: Initial Ring Acquirementmentioning

confidence: 99%

Section: Brep Generationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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BIM/GIS integration for web GIS-based bridge management

et al. 2020

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“…From the beginning, BIM researchers thought that GIS could represent the building environment partially, while GIS researchers considered that BIM could only provide a detail data model about the buildings as one of GIS data sources. With deepening the technique integration and broadening the applications, it become a trend to integrate BIM and GIS, and both semantics and geometry between them are feasible to interlink and interact (Zhu et al, 2019;Deng et al, 2016). In this case, the paper studies the visualization method and the visual effects of BIM model (with IFC format as input) in virtual geographic environment (VGE), in order to improve human interaction and cognitive ability of BIM model in VGE.…”

mentioning

confidence: 99%

Using Focus + Context Techniques to Visualize Building Information Model in virtual Geo-Environment

Shen

et al. 2019

Abstr. Int. Cartogr. Assoc.

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Abstract. The Integration of BIM and GIS is conducive to urban planning, construction and management, and have explored by relevant researchs (Yeo et al., 2016; Gilbert et al.; Wang et al.). From the beginning, BIM researchers thought that GIS could represent the building environment partially, while GIS researchers considered that BIM could only provide a detail data model about the buildings as one of GIS data sources. With deepening the technique integration and broadening the applications, it become a trend to integrate BIM and GIS, and both semantics and geometry between them are feasible to interlink and interact (Zhu et al., 2019; Deng et al., 2016). In this case, the paper studies the visualization method and the visual effects of BIM model (with IFC format as input) in virtual geographic environment (VGE), in order to improve human interaction and cognitive ability of BIM model in VGE. Based on Focus + Context techniques (Correa et al., 2016; Bjork et al., 2000; Carpendale et al., 1996), current development focuses on the solutions to the following problems.1) Focused BIM model in geographic environment.During the visualization process, BIM model has serious occlusion problems in two level: group level and component (sub-group) level. The group level occlusion means BIM model as an integral object may be occluded by other buildings in VGE (Qu et al., 2016; Deng et al., 2016; Johansson et al., 2015), and at the component level, inner components inside the BIM model may be occluded by other outer components when we focus or select inner one (Motamedi et al., 2014). So, there are corresponding component-level and group-level focus + context visualization.In VGE, buildings are important parts, but most of the time, the display of buildings are in the form of block or volume shapes. According to the definition of CityGML, buildings are usually represented by LOD1 or LOD2 objects. However, with the development of BIM technology, more and more requirements are needed to model the focus buildings. The corresponding building information and details are even more abundant than the LOD4 model in CityGML. When BIM model is imported into VGE as a significant rendering object, other buildings that are shown as blocks or volumes are often used as context, so BIM models will be the focus of VGE (Fig 1).2) Visualization of the internal details of BIM model.At the component-level focus + context visualization, conventional visualization software of BIM model use cutaway view, transparent view and explode view to visualize and obtain internal details of the BIM model, but they all have their own limitations.When we explore BIM model by the cutaway view (Fig2.a), an invisible vertical “knife” is put in the scene and divides the BIM model into two sections. The building part on one side of the section is completely preserved, while the building part on the other side is hidden, which loses the description of the overall relationship and structure of the building. When we visualize the BIM model by transparent view (Fig2.b), the components are highlighted and be semi-transparent, but the superposition of the transparent components and the selected opaque components causes the visible confusion.While explode view (Fig2.c) to visualize BIM model is a novel method, but the current software just adjusts each components’ position without considering global viewing effects.In the Focus + Context techniques, the corresponding focus visualization method achieves a deformation effect by enlarging, shrinking and shifting the position of focus object (Islam et al., 2007), thus to highlight the focus object and weaken the context. This paper proposes a two-layer Focus + Context visualization method to obtain the inner details of the focus components in BIM model (shown as Fig. 3). Moreover, the key of our researches is that considering the integration of the BIM model visualization in VGE, rather than in BIM model viewing software. In addition, the factors of geographic environment are discussed to improve the visualization effects. The two-layer and two-level (component-level and group-level) focus + context visualization (Section 1 and Section 2) should be combined together in VGE to achieve a progressive visualization from macro geographic environment to micro building element environment.3) Visualization of spatial relationship in BIM model.Spatial relationships are core elements in GIS. Current BIM models have seldom records and studies on spatial relationships but are necessary (Juszczyk et al., 2016). In geographic environment, it is vital to give the full play to the advantages of BIM models, especially its detail components, and to bound full cycle-life information. So building component-level spatial relationships among BIM models are constructed to integrate spatial analysis. The connectivity relationships among walls, doors and windows in Figure 4 are built as lines between walls to support the indoor navigation and wayfinding.

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Edge intelligence‐enabled supply chain financial model based on Business‐to‐Business e‐business platforms

Yin

Yang

et al. 2021

Concurrency and Computation

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Summary Based on the analysis of the existing traditional supply chain financial model, this article proposes an edge intelligence‐enabled supply chain financial model based on Business‐to‐Business (B2B) platforms, combines the operation mechanism of the model and the quantitative analysis thinking of the traditional supply chain financing. This article uses the model to construct and evaluates the cost–benefit model of dealers, manufacturers, and B2B e‐business platforms in the perspective of the supply chain finance for B2B platforms. In order to further explore the operation strategy of supply chain member enterprises, this article also explores the selection of financing objects of B2B platforms, the optimization of financing cost rate formulated by the loan amount of financing enterprises, and the optimization of product order quantity. Numerical analysis shows that the proposed model can directly reflect the changing trend of the relevant parameters of B2B platforms' supply chain financial model and provide suggestions for the cooperation mechanism between supply chain and commercial banks.

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Integration of BIM and GIS: Geometry from IFC to shapefile using open-source technology

Cited by 162 publications

References 25 publications

BIM/GIS integration for web GIS-based bridge management

BIM/GIS integration for web GIS-based bridge management

Using Focus + Context Techniques to Visualize Building Information Model in virtual Geo-Environment

Edge intelligence‐enabled supply chain financial model based on Business‐to‐Business e‐business platforms

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